package com.example.vp.service;

import org.apache.ibatis.annotations.Select;

import java.util.List;

public interface AttentionService {
    void attentionUser(long userId, Long id);

    Long getfansNumByUserId(Long userId);

    Long getattentionNum(Long userId);

    List<Long> getAttentionByUserId(Long userId);
    
}
